Flue connection for gas heaters



Oct. 31, 1933. M. SCHWARTZ ET AL 1,932,711

F'LUE CONNECTION FOR GAS HEATERS Filed Oct. 13, 1930 INVENTORS. MAxSaz/ WARTZ, BY \A/IL L/A r1 M/A/ayram Won fin? A TTORNEYS.

Patented Oct. 31, 1933 UNITED STATES PATENT OFFICE FLUE CONNECTION FOR GAS HEATERS Max Schwartz and William W. Norton, San Francisco, Calif.

Application October 13, 1930. Serial No. 488,510

7 Claims. (01. 126116) Our invention relates to improvements in flue fumes find their way into the jacket 4 and from connections for gas heaters, and it consists in there are directed into a vent pipe or flue 18. the combinations, constructions and arrange- Figure 3 shows the pipe 18 as being secured to ments hereinafter described and claimed. a connection indicated generally at 19, and it is An object of our invention is to provide a flue the construction of this connection which is the 60 connection for gas heaters which has novel means novel point in the present invention. The confor draining any condensation away from the nection has an inner cylindrical portion 20 with heater and out of the flue so that this water will a tapered outer surface 21 for receiving the pipe not rust away the fine or heater casing. 18. An apron 22 encircles the rear portion of A further object of our invention is to provide the cylinder 20, and this apron terminates just 65 a device of the type described in which the flue beyond an opening 23 in the outer box 11. Any or vent pipe is secured to a connection that exwater condensing in the pipe 18 will pass between tends from the outer box of the heater on to the the portion and the pipe into a space 24 heater itself, this connection being so designed formed by the portion 20 and the apron 22. The

15 as to prevent any fumes from passing into the inner surface 25 of the apron 22 is inclined so heater box and to cause condensation from the as to direct the water toward the open end 26 of vent pipe to drop clear of the furnace and the the apron. As already stated, this end projects pipe. beyond the opening 23, and therefore water drip- Other objects and advantages will appear as the P g om the Opening 6 will fall Clear 0f the 20 specification proceeds, and the novel featuresof outer surface of the box 11. This water will the device will be particularly pointedout in'the therefore have no effect in rusting the box 11.

claims hereto annexed. The apron 22 has a flange 27 which is bolted at Our invention is illustrated in the accompany- 28 to the box 11. A flange 29 is carried by the ing drawing, in which: cylindrical portion 20 and is secured to the jacket 25 Figure l is a vertical section through a gas 4 by bolts'or other suitable fastening means 30 heater, portions being shown in elevation, (see Figure 1). In this way the connection is Figure 2 is an enlarged plan view of the flue securely clamped to the jacket and to the housing connection, and prevents any gas fumes from entering the Figure 3 is a section along the line 33 of box 11. 30 Figure It will also be noted'that the inner open end 31 Figure 4 is an end view of the connection, and of the connection 19 is provided with a lip 32 and Figures 5 and 6 are sectional views of modified that water dripping from this lip due to condenforms of the invention. sation will drop clear of the inner surface of the In carrying out our invention We make use of a jacket 4. The bottom of the jacket is open as at 35 gas heater of the type shown in patents numbered 5, and it will therefore be seen that the jacket 1,666,367, issued April 1'7, 1928, and 1,700,559, wall cannot be rusted away by the water. The issued January 29, 1929. Briefly this heater combottom 33 of the box 11 is disposed beneath the prises a casting 1 having radiating fins 2, a lower connection 19 as shown in Figure 1. housing 3 for carrying the burner (not shown), In the usual heater the condensation forms in 40 and a jacket 4 that encloses the housing 3 and the pipe 18 and drops upon the bottom 33 of the has an open end 5. An air-diverting jacket 6 box 11 because the apron 22 is not provided. This encloses the casting 1 and has openings '7 with causes the bottom of the box to soon rust away. inclined projections 8 placing the space 9 within Furthermore, it is customary to leave an open the jacket in communication with the space 10 space in the box 11 for receiving the pipe 18, and

45 defined by the walls 11 of an outer box. The should the pipe drop away from any cause, the

entire device is supported by a floor l2 and a perfumes would pass from the connection into the forated plate 13 has air inlet openings 14 for box 11 because of the non-provision of the apron permitting cold air to pass downwardly into the 22. A space would be left between the outer end space 10 and air outlet openings 15 for permitting of the cylindrical portion 20 and the wall of the 50 hot air to pass upwardly from the space 9. A box 11. 05

gas valve 16 is controlled by a rod 17 in the man- The provision of the apron 22 performs a douner set forth in the patented devices. ble function of conveying condensation away The parts described thus far form no part of from the bottom 33 and. of preventing the gas our invention except insofar as they cooperate fumes from passing into the box 11 should the 55 with the parts now to be described. The gas p p 18 h accidentally removed. T placin f the bottom 33 below the connection 19 and the elimination of condensation dropping upon this bottom does away with holes being rusted into the bottom and prevents a cold draft from the basement passing through these holes and into the room. The opening of the bottom of the jacket 4 with the provision of the lip 32 prevents condensation from rusting away any part of the jacket.

In Figure 5 we show a slightly modified form of the invention. The part of the cylindrical member 20 projecting beyond the flange 29 is threaded at 50 for receiving a lock nut 51. The nut 51 clamps the jacket 4 to the flange 29. A lip 52 integral with the cylinder 20 keeps any condensation dripping from the cylinder from contacting with the wall of the jacket. In all other respects this form of the device is identical to that already described, and like reference numerals will therefore be applied.

In Figure 6 we show another modified form of the invention in which the sleeve 20 and the aprong 22 are made in two parts and are given the reference numerals and '76. The part '76 has an annular flange '77 threaded at 78 for receivinga threaded portion '79 of the sleeve '75. A flange 80 corresponding to the flange 29 bears against the outersurface of the jacket 4, and a flange 81 similar to the flange 2'7 bears against the wall 11. The sleeve '75 extends beyond the inner end of the part 76 and through an owning in the jacket 4. A lip 82 prevents condensation from dropping on the jacket 4. The other parts of the device are identical to that shown in Figure 3, and therefore like reference numerals will be applied.

Although we have shown and described several embodiments of our invention, it is to be understood that the same is susceptible of various changes, and we reserve the right to employ such changes as may come within the scope of the claims hereto annexed.

We claim:

1. A vent pipe connection comprising a cylindrical member having an outwardly extending flange spaced a slight distance from one end, an apron covering the other end and extending therebeyond, said apron being spaced'from said cylindrical member except at its place of attachment.

2. A vent pipe connection comprising a cylindrical member having an outwardly extending flange spaced a slight distance from one end, an apron covering the other end and extending therebeyond, said apron being spaced from said cylindrical member except at its place of attachment and an outwardly extending flange disposed a slight distance from the free end of the apron.

3. AVent pipe connection comprising a cylindrical member having an outwardly extending flange spaced a slight distance from one end, an apron covering the other end and extending therebeyond, said apron being spaced from said cylindrical member except at its place of attachment, the flanged end of the cylindrical member having an extending lip portion at its bottom.

4. In combination, a heater casing, a heater box surrounding the same and a vent pipe connection supported between the casing and the box and comprising a tube adapted to telescopingly receive the vent pipe and an apron encircling the vent pipe and adapted to guide condensation products to the outside of the heater box. 1 5. A vent pipe connection comprising a tube adapted to have a vent pipe telescoped thereon and an apron on the tube and encircling the end of the vent pipe, the apron being secured to an intermediate portion of the tube so as to leave a 1.

short length of tube projecting clear of the apron.

6. In combination, a heater casing, a heater box surrounding the same and a vent pipe connection supported between the casing and the box and comprising a tube adapted to telescoping- 1 1y receive the vent pipe and a member encircling the vent pipe and adapted to guide condensation products outside the space between the casing and thebox. V

7. In combination, a heater casing, a heater box surrounding the same and a vent pipe connection supported between the casing and the box and comprising a tube adapted to telescoping- 1y receive the vent pipe, and an apron secured between the casing and the box and arranged to 1: guide condensation, products outside the space between the casing and the box.

MAX SCHWARTZ. WILLIAM W. NORTON. 

